Paper stop for bread-wrapping machines



H. P. CHRISTENSEN PAPER $1101? FOR BREAD WRAPPING MACHINES Oct; 12 1926.1,602,880

Filed April z. 1926 Patented Oct. 12, 1926.

UNITED STATES PATENT OFFICE.

HANS IP. CHRISTENSEN, CHICAGO, ILLINOIS. ASSIGNOR' E1 ONE-HALF TO none;or omoaeo, innrirors.

P -H13 3'29? 7 3. EE D-WM PEN KA HFI S- a n a n filed April 2, mac.Serial m, 99,230.

' 10 rain peculiarities, of the construction, noyel arrangement andcombination of the parts thereof as will be. hereinafter more fully setforth and specifically claimed.

The principal object of my invention is, to

provide a very simple and, eificient attachment to be usedin connectionwith bread wrapping machines, for the purpose of more effectuallypreventing backwlashing. or buckling of the paper inits operation,- ofbeing fed from. rollers under a knife. or cutter, by means of which itmay be severed into proper lengths of sheets, which are afterwards usedfor wrapping loaves. of; bread.

Another object of the invention is, toprovide means whereby the positionof thepaper. holding finger or fingers may, be adjusted to the mosteffectual position with respect to one of the rollers over which the,paper is fed before it; is cut.

Another object of the invention is, to furnish a pap r Stop. of great,durability, and which shall be automatic in its operation and shallconsist of but few parts.

Other objects and advantages of the invention will be' disclosed in thefollowing description and explanation, which will be more readilyunderstood when read in conjunction with the accompanying dra-wlng, inwhich, an embodiment of the invention is illustrated, it beingunderstood that changes and modifications may be resorted to without adeparture from the spir t of the invention, so long as they fall withinthe scope of the appended claim.

In the drawing V Fig. 1, is a top view of a portion of a bread wrappingmachine showing my invention mounted thereon and in its operativeposition.

Fig. 2, is a view in side elevatlon of a portion of a table or platformof the machine over. the top of which the paper is fed to a knife orcutter and held by my improvements for intermittent movement and.

Fig. 3, is a, detached perspective View of the paper holding stop andits bearing members detached from, the platform or table.

Corresponding numerals of reference refer to like parts throughout thedifferent views of the drawing.

In the accompanying drawing, it will be understood, that I have shownonly such parts of a bread wrapping machine with which my improvementsare associated, the other parts, of said machine being omitted for thesake of clearness and because their illustration in the present instancewould be useless.

A part of the horizontal portion of the 7 table on the, top, of whichthe paper is fed along in the customary manner, is designated by thereference numeral 5, while the legs or upright portion of one endthereof, is designated by the numeral 6, and may extend entirely acrossthe platform 5, but is usually in the, form of legs at each corner ofthe platform or t ble. This upright portion 6. is provided at its upperend at each side of the ilatform, 5, with a horizontally disposed bracet 7, which are spaced apart, as shown, and have j ournaled thereonbetween the same a roller v8, over which the paper 9, passes from thefeed roller 10, and a tension roller '11, latter roller is j ournaled onbrackets 12, secured to, the upright portion 6, below the brackets 7, aswill, be clearly understood by reference to Fig. 2, of the drawing Justbelow the brackets 12, on which the roller 11, is journaled, is a pairof spaced rearwardly extending brackets 13, with which the upright 6, isprovided on and between which is journaled the feed roller. On each ofthe brackets 7 is pivotally mounted for adjustable movement by means ofa pivot pin 14, a bearing member 15, for the shaft 16, of the paperstopping attachment.

Each of the bearing members 15, is provided near its lower end with anarcuate slot 17, in which is located a thumb-screw 18, by means of whichthe position of each of the bearing members may be held in its adjustedposition.

Mounted on the shaft 16, are a number of paper holding fingers 19, eachof which isby preference made of rubber and has its lower extremityterminating in an arcuate end 20, which portion of each finger 19, willrest against the sheet 9, of paper and press it against the roller 14,as it passes thereover. Near its opposite end, each of the fingers 19,is provided with a transverse opening in which is preferably molded acircular bushing 21, of metal, or other suitable material. Each of thebushings 21, extends slightly to either side of the finger 19, in whichit is lo cated, so that when the fingers are used in groups, or pairs,as shown in Fig. 1, of the drawing, each pair of fingers will be spacedone from the other.

It will also be understood that the fingers when grouped in pairs asshown can be held in such groups by means of pins 22, extendedtransversely through suitable openings in the shaft 16, adjacent theouter ends of the bushings.

While I have shown the shaft with a plurality of groups of fingersmounted in spaced relation thereon, yet it is obvious that a single paironly of the fingers 19, may be employed and the other groups dispensedwith. It is also manifest that instead of using a plurality of fingerson the shaft 16, one finger only may be used. Whether one finger only,or one pair of fingers only are employed, it is by preference located atthe central portion of the shaft 16, but when a plurality of pairs offingers are used, it is desirable that one pair shall be located neareach end of said shaft.

Particular attention is called to the position of the arcuate end 20, ofeach finger with respect to its shaft 16, and with respect to the shaftof the roller 14, over which the paper passes. It will be observed inFig. 2, that as the bearings 15, are now located, the major part of thearcuate end of each finger 19. will be extended forwardly of a linedrawn transversely through said shafts, and it will be understoodfurther, that by this arrangement, as the fingers are loosely mounted onthe shaft 16, they will act by gravity on the paper feed in holding itin position on the roller 14. As before stated the positions of thebearing members 15, can be adjusted on their pivots 14, by means of theslot 17, and screw 18, so that the most effectual position of thearcuate ends of the fingers, with respect to the roller 14, may beattained.

It is well known among those skilled in the use of bread wrappingmachines, that it is desirable that the sheets cut from the feed shouldbe uniform in size, and by my im- 5 provements this feature is attained,as it will be understood that the roller 8. and knife 23, may be locatedas closely together as desired, and as the paper will be securely heldby the finger or fingers on the support for the paper, whether it be theroller 8, or otherwise, the paper will slide along the platform 5, tillit passes under the knife 23, thereby being cut by the latter intosheets or pieces of uniform length and without the danger or liabilityof the paper back-lash mg.

It is obvious that the holding finger or fingers 19, will clamp thepaper 9, in such a way as to cause its intermittent stoppage, 1

but also in such a way that it will be almost continuously fedunder theknife.

Having thus fully descrlbed my invention,

what I claim as new and desire to secure by Letters Patent is In adevice of the class described. the combination with the paper supportingplatform of a bread wrapping machine, of means for feeding paperthereover, means for cutting; the paper, a shaft journaled on the saidmachine horizontally and transversely, means depending from said shaftto rest on and hold the paper, said means having its paper contactingportion provided with an arcuate surface extending in the direction ofthe travel of the paper, and means for holding the said shaft in a backor forward position.

HANS P. CHRISTENSEN.

